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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,23 +1,155 @@ | ||
| #include "pch.h" | ||
| #include <magnification.h> | ||
| #include "../Shared/CommonSharedConstants.h" | ||
|
|
||
| static UINT WM_MAGPIE_SCALINGCHANGED; | ||
| static HWND curHwndScaling = NULL; | ||
|
|
||
| static void UpdateInputTransform(HWND hwndScaling) noexcept { | ||
| if (curHwndScaling == hwndScaling) { | ||
| return; | ||
| } | ||
| curHwndScaling = hwndScaling; | ||
|
|
||
| if (hwndScaling == NULL) { | ||
| RECT ununsed{}; | ||
| MagSetInputTransform(FALSE, &ununsed, &ununsed); | ||
| return; | ||
| } | ||
|
|
||
| RECT srcRect{ | ||
| .left = (LONG)(INT_PTR)GetProp(hwndScaling, L"Magpie.SrcLeft"), | ||
| .top = (LONG)(INT_PTR)GetProp(hwndScaling, L"Magpie.SrcTop"), | ||
| .right = (LONG)(INT_PTR)GetProp(hwndScaling, L"Magpie.SrcRight"), | ||
| .bottom = (LONG)(INT_PTR)GetProp(hwndScaling, L"Magpie.SrcBottom") | ||
| }; | ||
|
|
||
| RECT destRect{ | ||
| .left = (LONG)(INT_PTR)GetProp(hwndScaling, L"Magpie.DestLeft"), | ||
| .top = (LONG)(INT_PTR)GetProp(hwndScaling, L"Magpie.DestTop"), | ||
| .right = (LONG)(INT_PTR)GetProp(hwndScaling, L"Magpie.DestRight"), | ||
| .bottom = (LONG)(INT_PTR)GetProp(hwndScaling, L"Magpie.DestBottom") | ||
| }; | ||
|
|
||
| MagSetInputTransform(TRUE, &srcRect, &destRect); | ||
| } | ||
|
|
||
| static LRESULT WndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam) { | ||
| if (msg == WM_MAGPIE_SCALINGCHANGED) { | ||
| if (wParam == 0) { | ||
| // 缩放结束 | ||
| UpdateInputTransform(NULL); | ||
| } else if (wParam == 1) { | ||
| // 缩放开始 | ||
| UpdateInputTransform((HWND)lParam); | ||
| } | ||
|
|
||
| return 0; | ||
| } | ||
|
|
||
| return DefWindowProc(hWnd, msg, wParam, lParam); | ||
| } | ||
|
|
||
| static wil::unique_mutex_nothrow CheckSingleInstance() noexcept { | ||
| wil::unique_mutex_nothrow hSingleInstanceMutex; | ||
|
|
||
| bool alreadyExists = false; | ||
| if (!hSingleInstanceMutex.try_create( | ||
| CommonSharedConstants::TOUCH_HELPER_SINGLE_INSTANCE_MUTEX_NAME, | ||
| CREATE_MUTEX_INITIAL_OWNER, | ||
| MUTEX_ALL_ACCESS, | ||
| nullptr, | ||
| &alreadyExists | ||
| ) || alreadyExists) { | ||
| hSingleInstanceMutex.reset(); | ||
| } | ||
|
|
||
| return hSingleInstanceMutex; | ||
| } | ||
|
|
||
| int APIENTRY wWinMain( | ||
| _In_ HINSTANCE /*hInstance*/, | ||
| _In_ HINSTANCE hInstance, | ||
| _In_opt_ HINSTANCE /*hPrevInstance*/, | ||
| _In_ LPWSTR /*lpCmdLine*/, | ||
| _In_ int /*nCmdShow*/ | ||
| ) { | ||
| // 确保单例 | ||
| wil::unique_mutex_nothrow hSingleInstanceMutex = CheckSingleInstance(); | ||
| if (!hSingleInstanceMutex) { | ||
| MessageBox(NULL, L"已有实例", L"消息", MB_OK); | ||
| return 0; | ||
| } | ||
| auto se = hSingleInstanceMutex.ReleaseMutex_scope_exit(); | ||
|
|
||
| wil::unique_mutex_nothrow hMagpieMutex; | ||
| if (!hMagpieMutex.try_create(CommonSharedConstants::SINGLE_INSTANCE_MUTEX_NAME)) { | ||
| return 1; | ||
| } | ||
|
|
||
| if (wil::handle_wait(hMagpieMutex.get(), 0)) { | ||
| // Magpie 未启动 | ||
| hMagpieMutex.ReleaseMutex(); | ||
| return 0; | ||
| } | ||
|
|
||
| if (!MagInitialize()) { | ||
| MessageBox(NULL, L"失败", L"消息", MB_OK); | ||
| return 1; | ||
| } | ||
|
|
||
| RECT srcRect{ 0,0,100,100 }; | ||
| RECT destRect{ 10,10,210,210 }; | ||
| if (!MagSetInputTransform(TRUE, &srcRect, &destRect)) { | ||
| MessageBox(NULL, L"失败", L"消息", MB_OK); | ||
| WM_MAGPIE_SCALINGCHANGED = | ||
| RegisterWindowMessage(CommonSharedConstants::WM_MAGPIE_SCALINGCHANGED); | ||
| // 防止消息被 UIPI 过滤 | ||
| ChangeWindowMessageFilter(WM_MAGPIE_SCALINGCHANGED, MSGFLT_ADD); | ||
|
|
||
| // 创建一个隐藏窗口用于接收广播消息 | ||
| { | ||
| WNDCLASSEXW wcex{ | ||
| .cbSize = sizeof(wcex), | ||
| .lpfnWndProc = WndProc, | ||
| .hInstance = hInstance, | ||
| .lpszClassName = CommonSharedConstants::TOUCH_HELPER_WINDOW_CLASS_NAME | ||
| }; | ||
| RegisterClassEx(&wcex); | ||
| } | ||
|
|
||
| wil::unique_hwnd hWnd(CreateWindow( | ||
| CommonSharedConstants::TOUCH_HELPER_WINDOW_CLASS_NAME, | ||
| nullptr, | ||
| WS_OVERLAPPEDWINDOW | WS_POPUP, | ||
| CW_USEDEFAULT, | ||
| CW_USEDEFAULT, | ||
| CW_USEDEFAULT, | ||
| CW_USEDEFAULT, | ||
| NULL, | ||
| NULL, | ||
| hInstance, | ||
| 0 | ||
| )); | ||
| if (!hWnd) { | ||
| return 1; | ||
| } | ||
|
|
||
| return 0; | ||
|
|
||
| { | ||
| // 检查 Magpie 是否正在缩放，注意如果缩放窗口尚未显示视为没有缩放， | ||
| // 此时缩放窗口正在初始化，会在完成后广播 WM_MAGPIE_SCALINGCHANGED 消息 | ||
| HWND hwndScaling = FindWindow(CommonSharedConstants::SCALING_WINDOW_CLASS_NAME, nullptr); | ||
| if (hwndScaling && IsWindowVisible(hwndScaling)) { | ||
| UpdateInputTransform(hwndScaling); | ||
| } | ||
| } | ||
|
|
||
| MSG msg; | ||
| while (true) { | ||
| while (PeekMessage(&msg, NULL, 0, 0, PM_REMOVE)) { | ||
| DispatchMessage(&msg); | ||
| } | ||
|
|
||
| // 等待新消息或 Magpie 退出 | ||
| if (MsgWaitForMultipleObjectsEx(1, hMagpieMutex.addressof(), | ||
| INFINITE, QS_ALLINPUT, MWMO_INPUTAVAILABLE) == WAIT_OBJECT_0) { | ||
| // Magpie 已退出 | ||
| hMagpieMutex.ReleaseMutex(); | ||
| return 0; | ||
| } | ||
| } | ||
| } |